Glass



I. B. GRAHAM.

.YFULATSUN FILED JUNE I4, 19|?.

Patented Sept. 28, 1920.

3 SHEETS-SEEN Mams FUR AND METHOD oF nowmc GLASS., 1,353,907

J. B. GRAHAM.

MEANS FOR AND METHOD or fLowlNG GLASS.

MPLICATiUN FLED ,IUNE I4. 19H'. 1,353,907, Patentedept. 28, 1920.

UNITED STATES PATENT OFFICE.

JOSEPH B. GRAHAM, OF EVANSVXLLE, INDIANA, ASSIGNOR TO THE OWENS BOTTLEMACHINE COMPANY, OF TOLEDO,

OHIO, A CORPORATION OF OHIO.

MEANS FOR AND METHOD 0F FLOWVIINGGLASSl Appiication med .Tune 14,

To all whom t may aannam:

Be it known that I, JOSEPH B. GRAHAM, a citizen of the United States,residing at Evansville, inthe county of Vanderburg and State of Indiana,have invented new and useful Improvements in Means for and Methods ofFlowing Glass, ofwhich the following is a specification.

This invention relates to a method of and means for manipulating glassand more particularly to a method and mechanism for gathering andsegregating a flowing stream of molten glass into individual gathers ormasses to be transferred to forming molds.

It is desirable to have the glass as it flows from the tank at acomparatively high temperature because the highly fluid glass will makebetter ware, and also because it flows faster and much more freely at ahigh temperature. W'hcn using the highly fluid glass it needs to bechilled or cooled to a certain extent before it is in pro )er conditionto go into the blank mold. uch chilling, however, should not be muchgreater at one point than another or else it will produce defects in theware.

lt is old in the glass making art to esv tablish a .flowing stream ofmolten glass from a furnace or pot and permit it to accumulate in atemporary "receptacle, the mass being then transferred Jinto molds inwhich the glass is shaped. 1n l vndling the glass in this manner,V asheretofore practised, it is uneven'ly cooled, thereby preventing thearticle from being properly formed in the mold, and thus producingdefects whichappear in the finished article. This is particularlynoticeable in the scar produced b'y the cut-oft' device which forms atemporary bottom for the receptacle and remains in Contact with theglass during the entire time the ob is accumulating. so that the surfaceof tv e glass in contact with the cut-off device is unduly chilled. Theglass in the lower part of the receptacle is also cooled to a materiallygreater extent than the upper portion'of the charge. The effects of thesurfaifrije'rof the glass being unevenly chilled and scarred areparticularly objectionable in the manufacture of narrow necked bottlesand similar ware. and are so serious that it has heretofore been foundwholly im ractical to make such narrow neck ware from a flowing streamof glass.

An object of the resent invention is to overcome the above t ilicultiesby providing Specification of Letters Patent.

Patented Sept. 28, 1920.

1917. Serial No. 174,697.

a method and means for producing gobs of practically uniform temperaturethroughout, and further to elongate and form the gob into the bestpossible shape to enter the blank mold.

To this end the invention provides means whereby a stream of glass maybe established and gathered into individual masses or gathers which aretemporarily supported in a manner to permit the chilled surfaces to bereheated from the interior of the mass before being dro ped ortransferred to the forming mold. he glass may flow into a temporaryreceptacle iaving a bottom and side walls to support the accumulatingmams. As the glass accumulates in the receptacle the bottom isWithdrawn. The .side walls then form a temporary support preventing theglass from immediately dropping through the lower o en end of therecepitacle. The lower sur ace of the mass which has been chilled tosome extent by said bottom is quickly reheated from the interior of themass. At the same time the soft glass commences to sag or elongatedownward through the bottom of the receptacle, tending to produce a pearshaped or rounded mass. AThe outer layer or skin of glass on the exposedsurface, owing to the increased area of the surface, is thus attenuated.thereby materially aiding in reheatinothe glass and overcoming thecooling elf-ect which has been produced by temporary Contact with saidremovable bottom.

The extent to which the bottom surface of the mass has been chilled isalso comparatively small, owing to the fact that the removable bottom iswithdrawn before the entire mass has accumulated, and is therefore incontact with the glass only a short time. The lateral supportingsurfaces of the receptacle are formed to aid in temporarily supportingthe mass of glass, and for this purpose are preferably inclined orflared upwardly and outwardl forming a wedgeV shaped or invertedrusto-con1cal su porting surface for the mass.

he action of the glass when the mold bot'- tom is withdrawn, consists ina continued flow or movement of the glass through the center of theaccumulated mass while the outer or side portions of the mass arearrested b v the tapered walls of the receptacle. These wallsextract acertain amount of heat from the exterior portion of the mass. whichrenders said portion less fluid and aids in arresting it while there ise rontinned interior movement of the glnse This causes *he glane touecunnihito ut the top and hottorn of the mass simultnneously. In orderto permit the relie-ating ot the flower portions of the lateral surfacesalso of. he mass. which have been in ContactV with the .side wzile ofthe receptuclc as the gather coinnionres to accumulate therein, thelower portions of Suid side wells :i re made substanliull)Y vertical ormuy he inclined downwardly und outwardly. As a reeult, when the bottoniot the receptacle is withdrawn und the moss ot glass commences to sag orpull downward, the surface thereof is drawn ziwziv from the said lowerportions of the side wolle. thus decreasing` the diameter of thc gluesat the hottom ot the Cup and mu.- teriully increusiug the area` of theglass surfaire whrli is free to be reheated. This nrrungeinen tends toproduce a substantially uniform temperature throughout the muss :it thitime it is dropped into the forming mold. With the usual form of dividedcup, the lower portion of the 'charge of glass is willed ro u much lowertemperature than the upper portion while in the cup, owing to its livingkept in Contact with the Walls of the i-up und cnt-off device `for acomparatively long time. This dilicnlty is overcome 1n the presentinvention by preventing excessive rooling of the lower portion of themuss and causing the surface thereof to be reheutcd as nhove cxpluined.

The accumulating mass of is temporarily supportei'l in the receptacleutter the removable hotom is withdruwn but would zitter a brief intervalslide through the bottoni opening en. masse. However. to

40 :weist in the discharge of the mass at the proper moment thereceptacle is preferably mede in sections arranged to be separated,:iilowing the iniis l to drop into a. mold thereheneuth. @oid sectionsare then brought togehcr :iguin und the sliding hottom Ieturned or moveduCross the discharge open ing of the receptacle ne the :nnss dropstherefrom. to lherehy sever the lutter from the Stream of glues andclose said opening to permit the accumulation in the receptarle of a1succeeding gather.

liv tinL above method the gather of glass univ he delivered to a mold insuitable condition lor forming the neck end of :i narrow -nerliei hottieund the hitter is readily end :accurately molded without producing theScarsI or dci'erts which have heretofore rendered il impossible tosatisfactorily form narrow nerlcil 'rire from u flowing stream of glass.

l The invention further comprehends improved means for actuating :indcontrolling the divided receptacle and sliding bottom` sind mmmromprising cams arranged to effeet the, timed operution of the severalparte.

The cams opcl'zite in eynchronism with n iotury mold tahle by which uHet o5' molds :ire successively brought topohition to reci-ive thecharges of glues.

Other features und advuntzigc` ol' the invention will uppcurhvrciinil'ter.

The prescrit npplicution includes certain features disclosed in mtvco-prndiinr iipplirutioin Serin] No. 143.002. tiled vluninirv l2. 191i'.Y

ln the accompanying draining` which illustrate :in zippurzxtns embodyingthe principlee of my invention. Figure E :i sew tionul elevation showingthe rim V.zn-lo or hoot from which the continuino` uircam ol glass issupplieththe cup in whit/ii im glass is gathered, and the mold intowhich he gather is dropped.

Figs. 2. 3, 4 und :1re Similar *ewa showing the positiom` ot' parte atdillercot periods in the operation of collecting und dint-harging :igather of gluss into the forming mold.

Fig. (i is n phin view oi' thc divided cup and ent-oil", und theoperating means therefor.

The molten glass muy he supplied'zie usual from ii continuoun` meltingtank, (not shown) provided with un extension or clay hoot l? into whichthe molten glues* ll flows. A continuous flow or stream ot' g "15 fromthe hoot li) is established h v means of un opening in the hottointhereof. Suid opening formed in n removable bushing 12. sur port l-'l ofeast iron or other metal is; provided Jfor the hoot` l0. llencuth thebushing li is :i device 14. formed with a central opvuing, providing :ipassageway lor the stream of glass. in register with und formingsuhstnntinlly u mutinuntion ol' thc punsiigewuy through the hns-hing l2.Suid devirrhl also forme4 in combination with :i remoruhle hotY tom l5 ngathering receptacle or tcinporury retainer in which thc glues isarresti-,d :ind

temporarily supported :is it zicruinulutcs toY torni u guthcr or minis.which is euheeoucntly dischnrged through the open bottom of thercccptzicle H into :i mold therehi'ueiith. The receptacle or 'up ll isprefernhly sortionul or divided into two parte whit-h muy he separatedafter the bottoni l5 luis heen withdrawn. to ullow the? :iccumululeilmuss or gather to drop freely from the rereptuele.

The divided cup ll und rcmoruiile hottom 15 nre in some respects simihirto corre-- sponding parts disclosed in the United Statics patent toVroeger. 1.100.776. .inne 23, i914, and have some of the same functions.The principal tentures of the present invention` however. including themethod of and menus for preventing the undue chilling or hardening ofthe lower surface-of the :iccumnluting mass ot glass. reheating Suidsurfncc and effecting a substantially uniform cooling ol' the entiresurface of the lmnss, nre-not disrloscd in thc Vroeger patent and may bepractically carried out with various forms of mechanism which areentirely dis tinct from the mechanism disclosed in either the presentapplication or 'that of the Proeger patent.

The sections of the cup 14 may be provided with compartments 16 inwhich'wnter is circulated for cooling the-cup. The bottom of thereceptacle r14 provides a shearing edge to coperate with the blade orshearing edge 17 of the cut-off 15. The fiow of the stream from the boot10 is regulated by a plug 18 made of refractor material, and which isadjustable tower and from the mouth of the opening.

The mechanism for actuating the divided cup 14 and bottom 15 is shown inFig. 6. The two sections of the cup are carried on arms 19 and 20mounted to swing horizontally on their pivots 21`and 22. The arm 20forms part of a bell-crank lever having an arm 23 on which is mounted aroller 24 Y beari'r'ig against a cam 26 on a drive shaft 2T.

As the cam rotates, the high part 28 engages the roll 24 and Swings vthebellcrank 23, 2() to open the cup 14.-. Intermeshng gear segments 29transmit the motion to the arm 19. The cup is closed by means of sprinrs30 mounted on a rod 31 extending Freely through lugs 32 on the arms 19and 2U. Thesprings are confined between said lugs and nuts 33, thelatter adjustable to regulate the tension of the springs.

The swinging bottom 15 is carried by a bell-crank lever 34 pivoted at 22und having a roll 35 to bear against a cam36 for swinging said bottom.The cam 36 is also rotated by the shaft 27. Adjusting means 37 ermitsthe relative position of the cams to he adjusted to thereby time therelative movements of the cup and cnt-oit'. The shaft 27 is driven by orin synchronisln with 'a rotary mold table of a glass forming machinecarrying a series of molds The molds are brought seriatim into positionbeneath the cup to receive a charge. The cup sections are connected tothe arms 19, 2() by pivots 39, and held at the proper angle by adjustingscrews 4() which permit accurate adjustment of the abutting faces of thecup sections. Stationary supports 4T are provided for the cup sections.v

The operation will be understood from the following description. Asshown in Figs. 1 and 6, the cup is closed and the bottom l5 in positionto support the accumulating mass of glass. The cams (Fig. b') arerotating in the direction indicated by the arrow. As the cam 36 runs offthe roll 35 at the point 41, the bottom 15 is swung out by a spring (notshown) to the Fig. 2 position. The accumulatingr mass, however, insteadof droppin at once from the receptacle is temporarily su ported by theside walls thereof. To enable the glass to be thus supported these wallsare inclined u i wardly and outwardly from the point i, providing acompartment having the shape of an inverted frusturn of a cone, in whichthe glass is wedged and thus temporarily held. The lower portion of theinclined walls muy be curved inwardly as shown to form something of ashoulder at the point B, thereby aiding in supporting the glass. Themolten glass, however. immediately upon the withdrawal of' the bottom l5coinmences to sag or draw downwardly through and beyond the open bottoniof the rece Jtacle, as indicated in Fig. 2.

`he bottom 15 while in closed position cools the contacting surface ofthe `glass to a certain extent, tending to produce a thin surface layeroi chilled or hardened glass, but as the said bottom is withdrawn beforethe accumulation of glass has proceeded very far, this cooling effect iscomparatively slight. After the bottom is withdrawn the cooled surfaceis reheated and softened by the heat from the interior of the uniss.()wing to the area of said surface being greatlyl extended, the chilledlayer of glass is attenuated or drawn out and the reheating thusfacilitated. There is also a tendency for said cooled surface to bespread or carried to the sides of the mass :is the heated glass tends toHow or break `through the bottom of the mass. The sagging of the glassbelow the open bottoni of the cup is caused by the central How of thecomparatively hot liquid glass through the outer layer which has beencooled by contact with the walls of the cup. The lower end of the gobthus-formed is as hot as the portion within the cup, and thus in thebest condition for entering the neck end of the mold.

In order to further reduce und counteract the chilling or cooling of thesurface of the glass by its contact with the lower interior walls of thereceptacle i4. the downward direction of said walls from the point B ischanged or deflected outwardly from the general direction of said wallsabove the point li. This lower portion of the lateral walls may besubstantially vertical or more or less inclined or fiared downwardly andoutwardly. As a result of this arrangement the mass of glass as it sagsdownward through the open end ot the receptacle is drawn inwardly moreor less, leaving a space between the glass andthe lower side walls. Thesurface of the glass which is thus separated from the walls is therebygiven opportunity to be reheated from the interior of the mass. It willthus be seen that the cooling effort of said side walls is overcome,first. by shortening the time that the glass is in contact with saidwalls, and

second, by permitting the surfaceof theI glass to relient while the massis l'v thv tiinv thv awnmnlzxting moss of glnss bus :utninvd thvproportions indivnted in Fig: thv vom 2H hns renvhed its oper mingposition und separates the sections of thv vup It, :illowing the mass todrop Through :i l'nnnvl 44 into the forn1inr mold XS thvrvbvovzuh. itsindivated in Fig. 4. The vup thm vlo-vs :ind the shoulder 45 on the van]Ilo swings the i-llt-oll1 inward to never thv diwhiug'vd mass from theonvoniing .-ti'v:in1. Thv up 4vi-tions nre brought tofvthvr jim hvl'orvor simultaneously with thv opvrution olA the vut-oil' (Fig. (il. Thopnrts :irv thusbrought to the Fig. 1 poniA tion. voniplvting;l thv tyvlvof opvrntion. ili'lltl'tlll lll (llig'. 5) llllt'tr ilit* SeVel'etl vndol' thv vino-gv townrd the mold.

lt will hv obwrvvd that with tbv prvsvnt insvnioin pinvtil'nllv thvvntii'v nnnss'ol gol: ol' gloss is dropped :it onfv into tbv mold. This:winds thv objectionable overhlppin;r ot ghi vonunonly prolluvvd hyallowing: it to run in n stl'vmn into thv mold.

Although spvl'iiiv Vvfvrenvv is nnlde hvlvin to thv ndvzintngvs ot" theinw ition in von nevtion with thv nninul'urturv of narrow nvvk wnrv. itis to hv ulidvistood thnt tbv invention is not limited to such inv, undthv various ndvnntzigvs pointed out :1re obtained by its' usv in thvninnul'mtnrv of other forms of ware.

Modilimtions muy bv rvsortvd to within thv spirit :ind .st-ope ot myinvention.

1. )leans for .separating :i flowing;r sti-vom ol ihiss into individualmasses, rompi-Ning n rvrvptnvlv in the path ot' tbv flowing stream. smidrvvvptnvle having :i bottom to support the nvviunulnting mans. int-:insto withdrnw' said bottoni und lvnvv thv muss snpportvil by thv interniwill@ of smid rvvnptnvlv while the bottom surfnve of (The uniss. voolvdby vontnvt with sind bottomq is rvhvntvd l'roni the interior of thenniss. said walls bviufrtr loi-ined to sustain the uniss :ind pitvvnt itfrom dropping from tht; receptnvlv dnrinl;r ysaid rvhvnting. and moansfor then rvlviising Suid muss from snid receptanle.

L. Menos for separatingr n flowing stream otn glass into individualmasses, com rising :i rvvvptzivle in the path of the owing ,stream` smidrvreptaele having a bottom to support tin` :ifvnmnlnting mass. means towithdraw said bottom und leave the mass snpportedfby the lateral wallsof snid reveptavle while the bottom surface of the mass. Pooled byaontnvt with said bottom, in rehvntvd from thv interior of the mass`vsaid walls living formed to sustain the 'muss and prevent it fromdroppin;lr from the, receptacle during' snid reheuting. said rervpturlecomprising sections separable to release the muss :1nd permit it to dropfrom the rovvptncle, and means to separate said sections after saidbottom surface of the, glass hns herone rvheated. Y

3, The combination with a tnnii or con tdinvr for molten glass, saidtank provided with :i bottom opening to permit n stream of nioltvn glassto flow therefrom, of a vcptnvle beneath the tank in rvgister with saidopening and in which thv strvnm of gloss nffvnmulut'vs to form a mass orgather, said receptacle romprising side Walls und a bottom. xnenns towithdraw said bottom during;r the zn'vunnilntion of a muss within thv,rvvvptaclv and leave Suid mass supported hy the side Walls of saidreveptnvlv while. the. lowvr surtnve of said nniss` vooled hy rontuvtm'ith sziid bottonn is rehented from thv inn-rior of the` mass, Suidwalls being im vlinvd downwnrdbr und inwnrdl)| sulivientlv to sostnintbv nluss und prm'vnt iti from dropping trom thv rvvvptnolv during sindrvhvnting. :und nlvnns to return nid bottoni whvn thv moss hos` beendischnrgfvil through thv opvn hottoni oli thv rvvvpnivlv :ind there hy,se-rvr sziid uniss from thv flowing stream,

l. rl'he vonihinzition with n innig or Contziinvr lor molten gloss" saidtnnl; provided with :i bottom opt-ning to permit :l routinoons strvmn ofmoltvn glass to flow theren from` ot' :i rvvvptnrle hvnvnth the tank inregistri with Suid openingt :1nd in whieh the .strezun of glossnvvvlnlndntvs to jform :1 muss or gather. said rvvvptnvlv vonlprisingirside walls :1nd :i bottom. nivnns to withdraw .said bottoni dnrin;r thv:wvumulntion of' n nniss within thv rvvvptnvlv :1nd vaulsv said nntss tohv kmpportvd h v thv side walls ot' said rvvvptnvlv whilv thv lowersurfnet of :said nntvoolvd hy rohtzut with said bottoni, is relnnvd fromthv intvrior ol' the nniss, tho lntvi'nl walls` of said i'evvptznlvliving np wurdltr sind ont 'zu'illy invlinvd or flared :only

nrrangvd to sustain the weight of the av vunmlntinglr nmns und prvvvntit from dropping;A through the rervptnvlo innnvdjutely upon thvwithdrawal of said bottomi The voxnhilmtion with n vontniner from which:i stream of glass is supplied. of means for dividing the stream 'intoindividual masses. vomprising n receptnclv, sepw rate from the vontninerto temporarily reeeive :md support the nevuinnlnting mass, saidrereptacle having: side walls and a removable bottom` means to withdrawsind `bottom while the mass is nvvumnintinfr' in the receptacle. theside walls of the receptn.vlv being upwardly :1nd outwardly flared orinclined from n mint n short distance above the bottom of t ereceptacle, the form of the receptacle being such thatf th acoumulnting'muss is s ustained therein after the bottom is withdrawn, the dirvvtionof the lateral widls below said pointlieingl` qhnnged outwardly to widenthe lower portion of said reveptaele. whereby when sind hot-toni, iswithdrawn. tho molten glass while snpuns negano? ported by said inclinedwalls, sags below the bottom of the receptacle and draws awa from thelower side walls, ermitting the ower surfaces of the mass cooliad hcontact with said bottom and walls to e reheated from the interior ofthe mass before the latter is released from said receptacle.

6. The combination with a container from which a stream of. glass issupplied ofV means for manipulating the stream toV rm individual massesor gathers, said means t o be dischar `receptacle having a bottom Aoenin for the discharge of the mass, the si e wa s of the comprising areceptacle separate from the container to temfporarily support the accu#mulating mass o glass, said receptacle comprising a bottom and sidewalls, means for withdrawing said bottom and leavin the mass of glasssupported by the side wa ls of the receptacle, said side walis beingnpwardly 'and outwardly inclined from an intermediate point, the form ofthe receptacle being such that the accumulating mass is sustainedtherein after the bottom is withdrawn, the form of the walls below saidintermediate point being such that as the mass of glass sags or rotrudesthrough the bottom opening of sai receptacle it is withdrawn orseparated from the lower side walls While the mass 'is still sustained'by the upper sidewalls, thereby permitting the lower surfaces of themass to bereheated from the interiorof the mass before the latter isdischarged fromwtherecep'tacle.

7. The' combination with aftank; to contain molten glass and. 'rovi'dedwith a bottom openin for lthe of` a continuous stream of g ass, of a;receptacle below and in register with said opening to temporarilyreceive the glass` and collect it into'masses into suitable molds, saidreceptacle being inclined upwardly and outwardly from an intermediatepoint so that the walls above aid' point converge downwardly, the.convergency terminating at said noint,- a bottom beneath said bottomopening of the receptacle to ysupport and retain the glass within therece tacle dur-A ing theinitial accumulation o the mass therein, meansto withdraw said bottom and leave the mass supported by the said inclined walls, and means to discharge the ymass a predetermined timeinterval after the bottom has been withdrawn.

8. The combination of means for supporting a mass of molten glass,comprising lateral and bottom supporting surfaces, and means to withdrawsaid bottom surfaceand leave the glass su ported by said lateralsurfaces, the atter ormed to temporarily sus` tain the weight of theglass, and means to withdraw the lateral surfaces and thereby permit theglass to drop by gravity.

9. The combination of audevice having supporting surfaces arranged tosupport Y mass, the bottom of the mass being unsupported so that theWeight of the mass is sustained by said. supporting surfaces, and meansto release said mass and drop 1t before it has hardened sufficiently toretain the shape imparted to it by said supporting surfaces. y

10. Means for segre ting a Sewing stream of glass into in vidual massesor gathers, comprising a bottom support arranged to arrest the Howlingstream, lateral supporting walls for the accumulating mass, and meansfor withdrawing said bottom support and leaving the mass temporarilysupported by the lateral walls so that the bottom surface of the masscooled by contact with siyd bottom, will be reheated` from the inter rof the mass, said walls arranged to sus- 11. Means for segregating a`flowing stream' of glass into individual masses or gathers, comprising'a bottom supportA arranged to arrest the flowing stream, lateralsupporting wallsl for the accumulating mass, means for withdrawing saidbottom support and leaving the mass temporarily supported by the lateralwallsgso that the ottom surface of the mass cooled by contact with saidbottom, will be reheated from the interior of the mass, said wallsarranged t0 sustain the weight of the .mass and prevent it from ropplngduring said relieating, and timed mechanism to withdraw the lateralwalls to release the mass after said reheating.

12. Means for Segre ting a fiowing stream of glats i toinditvidualmasses or gathers, compt'isi g a bottom support arranged toarrest/the flowing stream, upwardiy and iouttvardly 'ii'relined lateralsupporting walls for the accumulating mass, an means forJ withdrawingsaid ottom supportand leaving the mass temporarily supported by thelateral walls so that the bottom surface of the mass cooled by contactwith said bottom, will be reheated from the interior of the mass andautomatic means to cause the release of the mass from said walls apredetermined time interval after the bottom sup ort is withdrawn.

13. The com ination with means for establishing a liowing stream-ofglass, of

means provdin 'a conduit or passageway through which t eglass flows,said conduit being of considerab y greater cross sectional areathan thestreamV iiow'ing therethrough, a Vdevice for interruptin the ow andcausing the lass to accumu ate within said conduit, an means to withdrawsaid interrupt? ing device to release the 'accumulated mass, saldconduit above said arresting device being so ormed'that the mass istemporarilyV supported thereby after said arresting de- 'ist vice iswithdrawn. permitting the surface of the mass, cooled by contact withsaid arresting device, to be reheated from the interior of the mass.

14. ln glass iowing mechanism, the combination with means forestablishing a stream of glass, of means providing a conduit orpassageway through which the giass flows, a device movable transverselyacross said passageway while the glass is flowing therethrough forarresting the iow and severin the stream into individual masses, saidcon( uit being narrowed or restricted adjacent said arresting devicesuiiiciently .to cause the mass ot' accumulated glass in the conduit tobe temporarily supported by the walls of the conduit when said devicehas been withdrawn, and timed mechanism for actuating said arrestingdevice.

l5. In a glass tiowing mechanism, the combination with means forestablishing a stream ot' molten glass, of a receptacle in which tlvlglass is accumulated, said receptacle comprising separable sections anda removable bottom, a cam, means actuated thereby to separate saidsections, a second cam, means actuated thereby to operate said bottom.said cams timed to first withdraw said bottom, and after a predeterminedtime interval to separate said sections, the receptacle being formed totemporarily support the mass after said bottom has been withdrawn, tothereby permit the bottom surface of the mass, which has been cooled bycontact with said bottom, to be reheated from the interior of the massbefore the First men tioned cam operates to separate said sections andrelease the accumulated mass.

16. The combination with means for flowing glass. of a receptaclepositioned below said means to receive the flow of glass and having aremovable bottom to provide a discharge opening, thc inner diameter ofthe receptacle being restricted at a point intermediate its top andbottom, means to withdraw said bottom when the level of the glass in thereceptacle reaches a point above said restriction, the latter beingsufficient to cause the mass to be temporarily supported, independentlyof said bottom, the walls 0f the receptacle below said restriction beingso formed that the glass will drawaway therefrom while thus supported.

17. ln [glass flowing apparatus. the combination with an open bottomedsectional cup, of ir bo tom therefor arranged to swingr into and out ot'position beneath said cup, arms mountedfto swing about a vertical axisand carrying the cup sections, a driveshaft, cams thereon. oml camarranged to swing said arms for opening or closing thc cup sections, thcother cam arranged to swing said bottom into or out of operativeposition. said cams timed to swing the bot:- tom out of operativeposition a predeter- 1 ,sus ,907

1f). Th.: method of manipulating grgflzliss,4

which consists in establishing a tiowlng stream ot' molten glass,providing a bottom support to arrest the stream and lateral snppor s forthc accumulating mass, and withdrawing the bottom support and causingthe mass to be sustained temporarily by the lateral supports while thebottom surface of the mass, cooled by said bottom support, is rehcatedfrom the interior of the mass.

2). The method of scgrcgating a fiowin stream of molten glass intomasses and delivering them to molds, which consists in arrestingr tbcstream and causingr thc glass to accumulate into a mass. temporarilysupporting said mass by the lateral surfaces or walls thereof. lausmgthe mass to slowly draw downward while thus supported, and thenreleasing the mass and disconnecting it .from the tlo\ving r stream andpermitting it to dro) into a mold.

ill. 'l`ho method of manipulating glass` which consists in separating astream of liowing glass into individual masses, supporting said massesat their lateral surfaces while the unsupported bottom surfaces of themasses are elongated downwardly by their weight, and releasing themasses and dropping thcln 22. rl`he method ot' manipulating glass, whichconsists in establishin a flowing stream ol' molten glass, providing abottom support to arrest the streamand lateral sunports for theaccumulating mass, withdraw ing the bottom support and causing the massto be sustained temporarily by the lateral supports while the bottomsurface of the mass, cooled by said bottom support, is reheated from theinterior of the mass.y releasing said mass from the lateral supports,and disconnecting the mass from the oncoming stream.

23. The method of vproducing gobs of glass from a. flowing stream ofmolten glass, which consists in arresting and supporting the lower endof the stream and causing it to accumulate to form a gob while supportedby a supporting surface, and causing a relative movement of theaccumulating gob and supl'iorting surface in a manner to canse` thelower portion of the gob to recede from said supporting surface and thearea of support to shift upwardly relatively to the'gob as the latteraccumulates, and separating the gob from the stream.

24.. The method of collecting a flowing stream of molten lass to form avertically elongated mass, w ich consists in arresting and confining thelower portion of said mass as it accumulates, and then Ysupporting themass at the upper ortion thereof and causing a separation o thelower-portion of the mass from its support while the weight of the massis supported at said upper portion and separating the mass from thestream.

25. The method of producing from a flow ing stream of molten glass, amass of sub.Y

stantially uniform temperature throughout, which consists in providingan obstructing surface to arrest the stream and cause the glass toaccumulate, and a supporting surface to support the accumulating mass,and withdrawing said obstructing surface during said accumulation, andcausing the surface of the glass, cooled by contact with saidobstructingr surface, to be reheated during said accumulation.

2G. The method of producing a charge of glass from a flowing stream ofmolten glass, which consists in interposing a bottom support to arrestthe stream providing lateral walls to confine the accumulating mass, andwithdrawing the bottom support and causing the lower portion of the massto Withdraw from the lateral walls and its surface to become reheatedwhile the. upper portion of the mass is accumulating and supported bysaid walls.

27. The method of manipulating glass, which consists in flowing glassinto an open ended receptacle to accumulate a charge, forming a dum ofglass in the receptacle by first obstructing the outlet while the dam isaccumulating, withdrawing the obstruction and continuing theaccumulation within the receptacle to complete the charge, and thendischarging and cutting o' the charge.

28. The method of manipulating glass which consists in first arresting aflowing stream of'glass to partially form a ob, then while arresting theside portions cfg the partially formed gob, to flow molten glasstherethrough, at the same time accumulating v'more of the flow at thetop until the dej siredsize of goh is formed, then releasing the gob andcutting it from the stream.

29. The method of gob-feeding from a flowing stream of molten glass,consisting in arresting the end of the stream to first partially form agob, then While the remainder of the gob is accumulating from thestream, to reheat the first portion by flowing a portion of the moltenlass centrally through the first accumulated ortion,"then feeding thecompleted 0b to tile shaping device 30. The met od of feeding glasssobs;

consisting in flowing molten glass, arresting the stream long enough topartially form a gob, thun clongating the lower end of the gob at thesame time accumulating more glass at the top until the desired quantitis accumulated to complete the gob, and t en infreleasing and feedingthe gob.

.'Pll. The method of producing a forxdd mass of glass from a flowingstream, whic 1 cqnsists 1n retardingr the flow to accumulate an initalportion of the mass, and building up the mass on both sides of saidinitial portion by causing a downward flow of the glass x through andbeyond said initial portion while the glass accumulates above saidinitial ortion` 32. he method of scgrcgating a stream of glass intoformed masses, which consists in flowing the glass into a former,causing the glass to protruih from the former while the weight of themass is supported by the former, releasing the mass, and separating' itfrom the stream.

33. The method of manipulating :i flowing stream of glass to produce a`mass, which consists in arrestingr the stream to commence theaccumulation of the mass, and causing a continued flow or movement ofthe accumulating glass through the interior of and beyond theaccumulated portion of the mass, thereby extending the mass beyond saidfirst accumulated portion thereof.

34. In combination with a glass-furnace having an orifice for emitting astream of molten glass; a twopart receptacle below and in closeoperative relation to the orifice of said furnace, which twopartreceptacle, when closed, has an opening therethrough registering withthe or1fice of said furnace, and said opening being contracted indiameter downwardly to a point in the lower half thereof and from saidpoint to the lower end of said opening, being expanded in diameterSuiliciently to permit the glass to separate from Contact with the lowerwalls of said receptacle while supported by said contracted. portion ofthe receptacle, the two parts of said receptacle being reciprocable toand from each other; means for reciprocating said two parts of saidreceptacle; a reciprocable cut-off member below and in close operativerelation to said two-part rece tacle; means for reciprocating saidcutolfJ member and said two-part receptacle in `synchronism with thestep-by-step rotation of a mold-table carrying molds to receive gatlhersof glass from said two-partlreceptac e.

35.A The method of forming an elongated gob with an end of reduceddiameter, which consists in flowing the glass into a forming receptaclehavmga restricted end openin causing the glass to rotrude slowly throngsaid openingand t ereby form a reduced end on the gob while' the weightof the gob is supported in the receptacle, and tin-i. discharging thegob.

36. Thrl method of forming an elongated gob, which consists in iowing astream of glass into u forming receptacle havin un elon ated cavity withdownwardly on inwar( ly tapered walls, causing a, portion of tho glassto protrude through a bottom open-- in r in the receptacle and therebyform an @nid on the goh of reduced diameter, while the weight of the gobis supported by said tapered walls discharging the gob, and Severin itfrom the stream.

37. he method which consists in fiowing glass into n forming receptacleshaped to orm an elongated gob and having a rostricted opening. causingthe gloss to protrude through said openingr :1nd thereby form a reducedend on the gob. und then dropping the gob from said receptacle into nmold having a reduced neck mold section and causing`r said reduced endof the goh to enter said neck mold section.

Signcd :it Ilvunsvillc, in thc county of Vandelburg und Stato oflndiunu. this Tth day of Junc, i917.

J USEPH B. RAHAM.

